10190-68-8 Usage
Description
Direct Yellow 27 is an organic dye that is characterized by its yellow-orange fine crystalline powder form. It is known for its colorful green light yellow appearance and is soluble in water, producing a lemon yellow color. It is also soluble in soluble fiber elements and ethanol, slightly soluble in benzene and carbon tetrachloride, and insoluble in other organic solvents. The dye exhibits various color changes when exposed to different acids, such as golden brown in strong sulfuric acid, colorful yellow in nitric acid, and golden light orange in strong hydrochloric acid. Direct Yellow 27 is classified as an A class SDC dye and has a water-soluble property that is relatively poor.
Uses
Used in Textile Industry:
Direct Yellow 27 is used as a colorant for cellulosic fibers, particularly for cotton and viscose neutral whites, as well as for white alkaline fabrics. It is employed in the dyeing and printing processes of these fabrics, providing a vibrant and lasting color.
Used in Silk, Wool, and Polyamide Fibers:
Direct Yellow 27 is also used for dyeing silk, wool, polyamide fibers, and their blended fabrics, offering a wide range of color options for these materials.
Used in Leather and Pulp Coloration:
In addition to textiles, Direct Yellow 27 is utilized in the leather and pulp industries for coloration purposes, enhancing the appearance and visual appeal of these products.
Standard:
The performance standards for Direct Yellow 27 in terms of acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading are as follows:
Acid Resistance: ISO 3-4, AATCC 5
Alkali Resistance: ISO 3, AATCC 5
Light Fastness: ISO 5, AATCC 5
Soaping: ISO 1-2, AATCC 1
Water Fading: ISO 1-2, AATCC 1
Stain Fading: Not specified
Stain: Not specified
These standards indicate the dye's performance and resistance to various conditions, making it suitable for a range of applications in different industries.
Preparation
2-(4-Amino-3-sulfophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, and N-(2-methoxyphenyl)-3-oxobutanamide coupling.
Standard
Acid Resistance
Fading
Stain
ISO
3-4
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 10190-68-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,1,9 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 10190-68:
(7*1)+(6*0)+(5*1)+(4*9)+(3*0)+(2*6)+(1*8)=68
68 % 10 = 8
So 10190-68-8 is a valid CAS Registry Number.
InChI:InChI=1/C25H22N4O9S3/c1-13-8-10-18-22(23(13)41(35,36)37)39-25(27-18)15-9-11-17(20(12-15)40(32,33)34)28-29-21(14(2)30)24(31)26-16-6-4-5-7-19(16)38-3/h4-12,21H,1-3H3,(H,26,31)(H,32,33,34)(H,35,36,37)/b29-28+
